[luatex] Why is --progname needed?

[Elie Roux]

Manuel Pégourié-Gonnard a écrit :
> mpg at roth:~% luatex --version
> This is LuaTeX, Version snapshot-0.39.0-2009041812 luatex.web v2306
>
> I find the v2306 mention quite confusing, don't you?
>   

I don't have this with rev 2323... Just another cosmetic question: is it 
necessary to write "restricted \write18 enabled." or "\write18 enabled" 
when shell_escape is set to p or t in texmf.cnf?
-- 
Elie